Table leg adjustment



April 2, 1935. c. H. GREE N 1 TABLE LEG ADJUSTMENT Filed Sept. 1953 /n ventor Clzfford H Green by Httg Patented Apr. 2, 1935 PATENT OFFICE 1,996,331 TABLE LEG ADJUSTMENT Clifford H. Green, Grand Rapids, Mich; assignor to Automatic Musical Instrument Company, Grand Rapids, Mich., a corporation of Michig an Application September 27, 1933, Serial No. 691,101 3 Claims. (01. 45-439) This invention relates. to means for leveling tables, stands, benches, cabinets and the like, and comprises a readily Operable means located in the lower end of the leg of the table or cabinet for adjusting the length of thesame.

The device is essentially an inverted jack screw contact, there is a tendency for the screw to turn when the cabinet is moved.

Where it is used to prevent rocking on an uneven floor, the device may be incorporated in only one of the four legs, because the three point contact will not rock, but it is seldom that the fourth leg will contact simultaneously with its opposite leg; and where precise leveling is required, such as in the cabinets of automatic machines such as phonographs, the device may be incorporated in each of the four legs.

Main objects of invention are to. provide a simple durable leveling adjustment which is capable of accommodating heavy loads and also.

being easily adjusted when loaded.

An illustrative embodiment of this invention is shown in the accompanying drawing in which:

Fig. l is a perspective view of the lower portion of a cabinet; V

Fig. 2 is a vertical section of one of the legs of the cabinet shown in Fig. 1; and is taken substantially on the line 2 -2 of Fig. 1.

Fig. 3 is a plan section on the line 3-'3 of Figure 2.

. A ferrule 4 of cast metal or other suitable construction, conforming to the contour and design of the cabinet 5, is fixedly mounted on the lower end on one or more of the legs 6. The ferrule has a recess 1 in the upper end which receives the end of the leg, and the lower end of the leg has a counterbore 8. The lower end of the ferrule has a cylindrical recess 9 for receiving the plug or enlarged head II) which constitutes the floor contact member; and the upper portion ll of the contact member I0 is reduced in diameter and threaded to screw into the solid medial pore tion l2 of the ferrule.

For locking the contact member against rota tion, the bore or recess 9 has longitudinal grooves M for the engagement of a ball detent l5 which is mounted in the upper portion of the plug; and for making the adjustmentthe exposed end of the plug is provided with holes for the insertion of any suitable instrument for. turning the contact member and threading'it up or down in the ferrule. Obviously, this construction is strong and sturdy,-and well adapted for hardusage where the loads are heavy, as in radio, phonograph cabinets and the like. The adjustment is very simple and easily accomplished, andiit is not apt to get out of adjustment;

Having thus described an illustrative embodi ment of my invention, I claim:

1. In a table legadjustment, a ferrule fixed on the end of the leg,-a floor contact member. comprising. a cylindrical plug inserted in the lower'end of the ferrule and threaded into the upper portion of the same, and a laterally projecting spring pressed detent mounted .in the plug for engaging the ferrule to maintain the adjustment. 7

- 2. In combination with a supporting leg, a ferrule fixed on the end of the leg, the, ferrule having a longitudinally grooved recess in its lower end, a floor contact member comprising a plug inserted in the recess and having a stem threaded into theupper portion of the ferrule,

and a detent mounted in the plug for engaging I in the grooves in said recess.

' 3. In a supporting leg, '2. ferrule fixed on'the end of the leg, the ferrule having a longitudinally grooved recess in its lower end, a floor contact member comprising a plug inserted in the recess 

